lostinlodos wrote:
Those boards are nickel etching.
Given that pure nickel is trending between 1.75 and 2.25 a pound... low grade isn't off at all. There's less than a quarter ounce of nickel on the largest board.
It's while many of the components have p/m in them... it's also about the recovery yields and how much cost is involved in recovery.
Boards like these take a lot more resources to refine than something like ram.
However if you'd like to buy them from me at the highest rate I'd be happy to sell you a few hundred pounds.
First i will apologize for my writing, english is not my first language, i live near Russia.
Second i want to say that the soviet bords was not nikel etching, they use silver, silver-palladium aloys and SnPb alloys.
The fingers of old soviet bords, they are Ag/Pd alloy, not tin like the others.
All the green and orange capacitors contain Pd, and some series have Pt, the grey small switches contain Pd and so on.
Thank you